Internal flow guide plate mold for water tank of breathing machine

Abstract

The utility model discloses a mould for a flow guide plate in a water tank of a breathing machine, which comprises an upper mould base and a lower mould base, a cavity is arranged between the upper mould base and the lower mould base, and the cavity is used for forming the flow guide plate in the water tank of the breathing machine. The upper mold cooling water channel and the lower mold cooling water channel are spirally distributed and correspond to each other; and the upper mold cooling water channel and the lower mold cooling water channel are respectively connected with an independent cooling liquid circulating system. The upper mold cooling water channel and the lower mold cooling water channel adopt the design of multilayer spiral distribution and independent circulation, and are matched with the spoiler and the novel cooling medium channel, so that compared with a traditional cooling water channel, the mold can be cooled more uniformly and more quickly, the cooling efficiency is greatly improved, the production period is shortened, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of mold manufacturing, and in particular to a mold for an internal guide plate of a ventilator water tank. Background Technology

[0002] In the production of ventilators, the quality of the internal baffle plate of the water tank has a significant impact on the ventilator's performance. Currently, the molds used to manufacture these baffle plates have several problems. Firstly, the existing mold cooling systems are inefficient, leading to longer production cycles and impacting production efficiency. Secondly, the mold's demolding structure is not well-designed, easily causing damage to the baffle plate surface and reducing product yield. Furthermore, existing molds lack precision control, making it difficult to meet the complex structure and high-precision requirements of the internal baffle plate in ventilator water tanks. Therefore, there is an urgent need to design a new mold for the internal baffle plate of ventilator water tanks to solve these problems. Utility Model Content

[0003] This utility model aims to at least partially solve one of the problems in related technologies. Therefore, one objective of this utility model is to provide a mold for the internal guide plate of a ventilator water tank, which improves the mold's cooling efficiency, demolding quality, and molding precision, thereby enhancing the production efficiency and product quality of the internal guide plate for the ventilator water tank.

[0004] A mold for an internal guide plate of a ventilator water tank, comprising an upper mold base and a lower mold base, wherein a cavity is provided between the upper mold base and the lower mold base for forming the internal guide plate of the ventilator water tank, characterized in that an upper mold cooling water channel is provided in the upper mold base and a lower mold cooling water channel is provided in the lower mold base, both the upper mold cooling water channel and the lower mold cooling water channel are spirally distributed and are arranged correspondingly to each other; the upper mold cooling water channel and the lower mold cooling water channel are respectively connected to an independent coolant circulation system.

[0005] Furthermore, the upper mold cooling channel includes a first upper cooling channel, a first middle cooling channel, and a first lower cooling channel. The first upper cooling channel is close to the surface of the upper mold base that contacts the cavity. The first middle cooling channel is located in the middle of the upper mold base. The first lower cooling channel is close to the bottom of the upper mold base. Each cooling channel is connected to a transition channel located on the side wall of the mold.

[0006] Furthermore, the lower mold cooling channel includes a second upper cooling channel, a second middle cooling channel, and a second lower cooling channel. The second upper cooling channel is close to the surface of the lower mold base that contacts the cavity. The second middle cooling channel is located in the middle of the lower mold base. The second lower cooling channel is close to the bottom of the lower mold base. Each cooling channel is connected to a transition channel located on the side wall of the mold.

[0007] Furthermore, the inner wall of the lower mold cooling channel is provided with wave-shaped baffles.

[0008] Furthermore, the wave-shaped baffle of the lower mold cooling channel is a detachable structure, which is connected to the inner wall of the cooling channel by snaps or threads.

[0009] Furthermore, a portion of the upper mold cooling channel and the lower mold cooling channel are provided with a denser spiral structure, the pitch of which is smaller than the pitch of the remaining areas.

[0010] Furthermore, the lower mold base is provided with an ejection mechanism, which includes multiple ejector pins and an ejector pin fixing plate. One end of the ejector pin is connected to the ejector pin fixing plate, and the other end extends through the lower mold base into the cavity.

[0011] Furthermore, a return spring is provided below the ejector pin fixing plate, which is used to reset the ejector pin after demolding.

[0012] Furthermore, the surface of the ejector pin is provided with a wear-resistant coating.

[0013] Compared with the prior art, the technical solution provided in this application has the following advantages: The upper and lower mold cooling channels of this application adopt a multi-layered spiral distribution and independent circulation design. Combined with baffles and novel cooling medium channels, it can cool the mold more evenly and quickly compared to traditional cooling channels, greatly improving cooling efficiency, shortening the production cycle, and reducing production costs. The multi-layered cooling channels allow for precise control of heat distribution in different parts of the mold, and the introduction of novel cooling media further broadens the selection of cooling methods, adapting to diverse production needs. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] In the attached image:

[0017] Figure 1 This is a schematic diagram of the external structure of an embodiment of the internal guide plate mold for the ventilator water tank of this application;

[0018] Figure 2This is a cross-sectional structural schematic diagram of an embodiment of the internal guide plate mold of the ventilator water tank of this application;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of another embodiment of the internal guide plate mold of the ventilator water tank in this application;

[0020] Figure 4 This is a cross-sectional structural schematic diagram of another embodiment of the internal guide plate mold of the ventilator water tank in this application;

[0021] Figure 5 This is a cross-sectional structural schematic diagram of another embodiment of the internal guide plate mold of the ventilator water tank in this application;

[0022] Figure 6 This is a schematic diagram of the external structure of an embodiment of the internal guide plate mold of the ventilator water tank of this application from another perspective.

[0023] Figure label:

[0024] 1. A mold for an internal baffle plate of a ventilator water tank; 10. Upper mold base; 11. Upper mold cooling channel; 111. First upper cooling channel; 112. First middle cooling channel; 113. First lower cooling channel; 20. Lower mold base; 21. Lower mold cooling channel; 211. Second upper cooling channel; 212. Second middle cooling channel; 213. Second lower cooling channel; 214. Baffle plate; 30. Cavity; 40. Ejection mechanism; 41. Ejector pin; 43. Ejector pin fixing plate; 45. Return spring. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] like Figure 1 , Figure 2As shown, this application provides a mold 1 for an internal guide plate of a ventilator water tank, including an upper mold base 10 and a lower mold base 20. A cavity 30 is provided between the upper mold base 10 and the lower mold base 20. The cavity 30 is used to form the internal guide plate of the ventilator water tank. The upper mold base 10 is provided with an upper mold cooling water channel 11, and the lower mold base 20 is provided with a lower mold cooling water channel 21. The upper mold cooling water channel 11 and the lower mold cooling water channel 21 are both spirally distributed and are arranged correspondingly to each other. The upper mold cooling water channel 11 and the lower mold cooling water channel 21 are respectively connected to an independent coolant circulation system.

[0028] Compared to traditional mold cooling methods, this design significantly improves cooling efficiency. The spiral distribution greatly increases the contact area between the coolant and the mold, resulting in more thorough heat exchange. The independent circulation system can flexibly adjust the coolant flow rate and temperature according to the actual heat demand of the upper and lower mold bases 20, avoiding localized overheating or uneven cooling. This effectively shortens the production cycle, reduces energy consumption, thereby lowering production costs and enhancing product competitiveness.

[0029] In actual production, cooling efficiency directly affects the production cycle. Traditional mold cooling channel designs are simple, and uneven cooling can easily lead to problems such as product deformation and dimensional deviations. This design solves these problems by optimizing the shape of the cooling channels and the circulation system, thereby improving production efficiency and product quality.

[0030] Furthermore, such as Figure 3 As shown, the upper mold cooling channel 11 includes a first upper cooling channel 111, a first middle cooling channel 112, and a first lower cooling channel 113. The first upper cooling channel 111 is close to the surface of the upper mold base 10 that contacts the cavity 30. The first middle cooling channel 112 is located in the middle of the upper mold base 10. The first lower cooling channel 113 is close to the bottom of the upper mold base 10. Each cooling channel is connected to the transition channel located on the side wall of the mold.

[0031] Layered cooling allows for more precise temperature control of different parts of the upper mold. The upper cooling channel near the cavity 30 surface rapidly cools the molding surface, preventing overheating and deformation of the product. The middle and lower cooling channels cool the middle and bottom of the mold respectively, maintaining overall thermal balance. Transfer channels ensure smooth flow of coolant across all layers, further improving cooling efficiency and enhancing product molding quality. During the molding process, different parts of the mold experience varying degrees of heat. The area where the upper mold contacts the cavity 30 has concentrated heat; if not cooled promptly, this can easily lead to surface defects. The layered cooling design allows for targeted cooling based on heat distribution characteristics, improving product quality stability.

[0032] Furthermore, the lower mold cooling channel 21 includes a second upper cooling channel 211, a second middle cooling channel 212, and a second lower cooling channel 213. The second upper cooling channel 211 is close to the surface of the lower mold base 20 that contacts the cavity 30. The second middle cooling channel 212 is located in the middle of the lower mold base 20. The second lower cooling channel 213 is close to the bottom of the lower mold base 20. Each cooling channel is connected to a transition channel located on the side wall of the mold.

[0033] Layered cooling of the lower mold also allows for precise temperature control, ensuring the thermal stability of the lower mold during the molding process. The upper cooling channel near the cavity 30 quickly removes heat from the molding area, preventing deformation of the product bottom. The middle and lower cooling channels maintain a uniform overall temperature of the lower mold, avoiding mold deformation due to temperature differences. The transfer channel design makes coolant circulation more efficient, further optimizing the cooling effect and improving product yield. The lower mold bears significant pressure and heat during molding; uneven cooling can easily lead to mold deformation and product quality issues. Layered cooling and the transfer channel design effectively solve these problems, improving mold lifespan and product quality.

[0034] Furthermore, such as Figure 4 As shown, the inner wall of the lower mold cooling channel 21 is provided with wave-shaped baffles 214.

[0035] The corrugated baffle 214 generates turbulence in the coolant during flow, breaking the boundary layer and enhancing the heat exchange efficiency between the coolant and the channel walls. Compared to cooling channels with smooth inner walls, the baffle 214 allows the coolant to absorb heat from the mold more fully, further increasing the cooling rate and reducing cooling time, thereby improving production efficiency. Fluid dynamics principles show that heat exchange efficiency is higher in turbulent flow than in laminar flow. By altering the coolant flow state, the baffle 214 increases the intensity and uniformity of heat exchange, improving the performance of the cooling system.

[0036] Furthermore, the wave-shaped baffle 214 of the lower mold cooling channel 21 is a detachable structure, which is connected to the inner wall of the cooling channel by snap-fit ​​or thread.

[0037] The detachable baffle 214 facilitates the replacement of damaged or worn baffles after prolonged use of the mold, ensuring the cooling system maintains optimal performance. Furthermore, baffles 214 of different shapes or materials can be replaced to optimize cooling and enhance mold adaptability, depending on production needs. During long-term use, mold components will experience wear and damage. The detachable design reduces maintenance costs and extends mold lifespan. Simultaneously, the replaceable baffle 214 can meet the specific cooling requirements of different products.

[0038] Furthermore, such as Figure 5As shown, some areas of the upper mold cooling channel 11 and the lower mold cooling channel 21 are provided with a denser spiral structure, and the pitch of the denser spiral structure is smaller than the pitch of the other areas.

[0039] Incorporating a denser spiral structure in areas of the mold prone to high heat generation increases the residence time and contact area of ​​the coolant, enabling targeted cooling. This effectively solves the problem of localized overheating in the mold, ensuring uniform mold temperature, improving product molding accuracy, and reducing product defects. Different parts of the mold generate varying amounts of heat during the molding process. The denser spiral structure can specifically enhance cooling based on heat distribution, optimizing the cooling effect and meeting the production requirements of high-precision products.

[0040] Furthermore, an ejection mechanism 40 is provided on the lower mold base 20. The ejection mechanism 40 includes multiple ejector pins 41 and an ejector pin fixing plate 43. One end of the ejector pin 41 is connected to the ejector pin fixing plate 43, and the other end extends through the lower mold base 20 into the cavity 30.

[0041] A well-designed ejection mechanism 40 smoothly and efficiently ejects the molded guide plate from the cavity 30. Multiple ejector pins 41 are evenly distributed, preventing product deformation or damage due to uneven ejection, improving demolding quality, and reducing scrap rate. Improper ejection during demolding can easily cause surface scratches, deformation, and other defects. This ejection mechanism 40 design ensures the integrity of the product during demolding, improving product quality and production efficiency.

[0042] Furthermore, a return spring 45 is provided below the ejector pin fixing plate 43, which is used to reset the ejector pin 41 after demolding.

[0043] The addition of the return spring 45 enables the automatic reset of the ejector pin 41, greatly improving production efficiency. In traditional mold demolding processes, without a reset device, the ejector pin 41 needs to be manually reset, which is not only time-consuming and labor-intensive but also prone to inaccurate reset, affecting product quality and production continuity. With the return spring 45, the ejector pin 41 can quickly and accurately return to its initial position after each demolding, reducing waiting time and improving production efficiency. Furthermore, the stable and reliable reset function ensures the consistency of each ejection action of the ejection mechanism 40, reducing the risk of product damage or poor demolding due to ejector pin 41 positional deviations, and helping to improve product yield.

[0044] In actual mold production, improving production efficiency and product quality are key objectives. From an operational perspective, manually resetting the ejector pin 41 is inefficient and prone to errors; from a product quality perspective, inaccurate positioning of the ejector pin 41 can lead to product defects or even scrap. The application of the return spring 45 solves these problems, aligns with the trend of automation and high efficiency in mold production, and also meets the need to improve product quality stability.

[0045] Furthermore, the surface of the ejector pin 41 is provided with a wear-resistant coating.

[0046] The wear-resistant coating effectively reduces wear on the ejector pin 41 during frequent ejection processes, extending its service life and reducing mold maintenance costs. Simultaneously, the smooth wear-resistant coating reduces friction between the ejector pin 41 and the product, preventing scratches on the product surface and further improving product quality. During long-term use, the ejector pin 41 frequently comes into contact with the mold and product, making it prone to wear. The wear-resistant coating enhances the wear resistance and surface finish of the ejector pin 41, improving the overall performance of the mold and product quality.

[0047] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A mold for an internal guide plate of a ventilator water tank, comprising an upper mold base and a lower mold base, wherein a cavity is provided between the upper mold base and the lower mold base, the cavity being used to form the internal guide plate of the ventilator water tank, characterized in that, The upper mold base is provided with an upper mold cooling water channel, and the lower mold base is provided with a lower mold cooling water channel. Both the upper mold cooling water channel and the lower mold cooling water channel are spirally distributed and are arranged corresponding to each other. The upper mold cooling water channel and the lower mold cooling water channel are respectively connected to an independent coolant circulation system.

2. The mold for the internal guide plate of a ventilator water tank according to claim 1, characterized in that, The upper mold cooling channel includes a first upper cooling channel, a first middle cooling channel, and a first lower cooling channel. The first upper cooling channel is close to the surface of the upper mold base that contacts the cavity. The first middle cooling channel is located in the middle of the upper mold base. The first lower cooling channel is close to the bottom of the upper mold base. Each cooling channel is connected to a transition channel located on the side wall of the mold.

3. The mold for the internal guide plate of a ventilator water tank according to claim 2, characterized in that, The lower mold cooling channel includes a second upper cooling channel, a second middle cooling channel, and a second lower cooling channel. The second upper cooling channel is close to the surface of the lower mold base that contacts the cavity. The second middle cooling channel is located in the middle of the lower mold base. The second lower cooling channel is close to the bottom of the lower mold base. Each cooling channel is connected to a transition channel located on the side wall of the mold.

4. The mold for the internal guide plate of a ventilator water tank according to claim 3, characterized in that, The inner wall of the lower mold cooling water channel is provided with wave-shaped baffles.

5. The mold for the internal guide plate of a ventilator water tank according to claim 4, characterized in that, The wave-shaped baffle of the lower mold cooling channel is a detachable structure, which is connected to the inner wall of the cooling channel by snaps or threads.

6. The mold for the internal guide plate of a ventilator water tank according to claim 1, characterized in that, A portion of the cooling channels of the upper and lower molds is provided with a denser spiral structure, the pitch of which is smaller than the pitch of the remaining areas.

7. The mold for the internal guide plate of a ventilator water tank according to claim 1, characterized in that, The lower mold base is provided with an ejection mechanism, which includes multiple ejector pins and an ejector pin fixing plate. One end of the ejector pin is connected to the ejector pin fixing plate, and the other end passes through the lower mold base and extends into the cavity.

8. A mold for an internal guide plate of a ventilator water tank according to claim 7, characterized in that, A reset spring is provided below the ejector pin fixing plate, which is used to reset the ejector pin after demolding.

9. A mold for an internal guide plate of a ventilator water tank according to claim 7, characterized in that, The surface of the ejector pin is provided with a wear-resistant coating.

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